blob: 1c7028e06addfaf4ae4e40849a122808408946e1 [file] [log] [blame]
// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG interface6
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Interface values containing structures.
package main
import "os"
var fail int
func check(b bool, msg string) {
if (!b) {
println("failure in", msg);
fail++;
}
}
type I1 interface { Get() int; Put(int); }
type S1 struct { i int }
func (p S1) Get() int { return p.i }
func (p S1) Put(i int) { p.i = i }
func f1() {
s := S1{1};
var i I1 = s;
i.Put(2);
check(i.Get() == 1, "f1 i");
check(s.i == 1, "f1 s");
}
func f2() {
s := S1{1};
var i I1 = &s;
i.Put(2);
check(i.Get() == 1, "f2 i");
check(s.i == 1, "f2 s");
}
func f3() {
s := &S1{1};
var i I1 = s;
i.Put(2);
check(i.Get() == 1, "f3 i");
check(s.i == 1, "f3 s");
}
type S2 struct { i int }
func (p *S2) Get() int { return p.i }
func (p *S2) Put(i int) { p.i = i }
// Disallowed by restriction of values going to pointer receivers
// func f4() {
// s := S2{1};
// var i I1 = s;
// i.Put(2);
// check(i.Get() == 2, "f4 i");
// check(s.i == 1, "f4 s");
// }
func f5() {
s := S2{1};
var i I1 = &s;
i.Put(2);
check(i.Get() == 2, "f5 i");
check(s.i == 2, "f5 s");
}
func f6() {
s := &S2{1};
var i I1 = s;
i.Put(2);
check(i.Get() == 2, "f6 i");
check(s.i == 2, "f6 s");
}
type I2 interface { Get() int64; Put(int64); }
type S3 struct { i, j, k, l int64 }
func (p S3) Get() int64 { return p.l }
func (p S3) Put(i int64) { p.l = i }
func f7() {
s := S3{1, 2, 3, 4};
var i I2 = s;
i.Put(5);
check(i.Get() == 4, "f7 i");
check(s.l == 4, "f7 s");
}
func f8() {
s := S3{1, 2, 3, 4};
var i I2 = &s;
i.Put(5);
check(i.Get() == 4, "f8 i");
check(s.l == 4, "f8 s");
}
func f9() {
s := &S3{1, 2, 3, 4};
var i I2 = s;
i.Put(5);
check(i.Get() == 4, "f9 i");
check(s.l == 4, "f9 s");
}
type S4 struct { i, j, k, l int64 }
func (p *S4) Get() int64 { return p.l }
func (p *S4) Put(i int64) { p.l = i }
// Disallowed by restriction of values going to pointer receivers
// func f10() {
// s := S4{1, 2, 3, 4};
// var i I2 = s;
// i.Put(5);
// check(i.Get() == 5, "f10 i");
// check(s.l == 4, "f10 s");
// }
func f11() {
s := S4{1, 2, 3, 4};
var i I2 = &s;
i.Put(5);
check(i.Get() == 5, "f11 i");
check(s.l == 5, "f11 s");
}
func f12() {
s := &S4{1, 2, 3, 4};
var i I2 = s;
i.Put(5);
check(i.Get() == 5, "f12 i");
check(s.l == 5, "f12 s");
}
func main() {
f1();
f2();
f3();
// f4();
f5();
f6();
f7();
f8();
f9();
// f10();
f11();
f12();
if fail > 0 {
os.Exit(1)
}
}